5 PFF stats you need to know from NFL Week 15

Miss a moment of NFL Week 15 action? Here are the five key stats you need to know coming out of Sunday’s slate of games.

[Editor’s note: See the highest-graded players from every NFL Week 15 game here.]

1. In Week 15, Packers RB Ty Montgomery led all running backs (min. 12 carries) in yards after contact per attempt, elusive rating, and breakaway percentage.

In addition to topping all positional peers in those categories, Montgomery also tied Falcons RB Devonta Freeman with a league-high seven broken tackles on his carries (albeit it on four less rushing attempts than Freeman). Montgomery recorded 9.8 yards after contact per attempt on his way to 162 total yards and two rushing touchdowns. As the Packers pursue a playoff spot, converted wideout Montgomery will likely continue to play a key role in the Green Bay offense as a running back.

2. Dallas QB Dak Prescott was the league's most-accurate quarterback in Week 15.

In the Cowboys' 26-20 win over the Buccaneers, Dak Prescott rebounded from his below-average Week 14 performance in a big way. The former Mississippi State standout connected on 32 of his 36 passing attempts for a league-high 88.9 adjusted completion percentage. Prescott is now ranked among PFF's top 10 quarterbacks through Week 15 with an 83.0 overall grade.

3. Raiders DE Khalil Mack recorded eight QB pressures against the Chargers, the most among all edge defenders so far in Week 15.

Oakland clinched a playoff berth in Week 15 with a 19-16 win over San Diego. Earning the highest grade (88.2) on defense for Oakland was defensive end Khalil Mack, who recorded a league-high eight QB pressures (three hits and five hurries). For the season, Mack remains PFF's top-graded edge defender, with a 93.5 mark, and a key component in Oakland's success.

4. Colts QB Andrew Luck recorded the highest NFL passer rating when under pressure in Week 15, at 146.7.

In Indianapolis' 34-6 rout of the Minnesota Vikings, Colts quarterback Andrew Luck faced pressure on 34.5 percent of his dropbacks (just the 11th-highest rate in Week 15 thus far). On such dropbacks, he completed nine of 10 attempted passes for a 90.0 adjusted completion percentage. Through Week 15, Luck is still PFF's No. 2 ranked quarterback, with a 91.8 grade.

5. Texans QB Tom Savage earned the second-highest game grade among Houston quarterbacks this season.

Following the benching of starting QB Brock Osweiler in the second quarter, Savage led the Texans to a key AFC South victory over the Jaguars. Savage's 73.6 PFF grade against Jacksonville came on the back of 260 passing yards. Osweiler still owns the highest-graded game among the Texans' QBs for the season, with his 84.5 mark in Week 1 against Chicago. Before being benched against the Jags, Osweiler completed just six of 11 passes and threw two picks.